Geoege kelly



(NoModel'J G. KELLY.

NON CONDUCTING COVERING. No; 292,318. Patented Jan '22, 1884.

r Jffi 6 l l a! W I W AT'TEsT: V

N: FETEKS, Phulwhlhogmpher. Washinglnn D, C.

' UNIT D STATES PATENT OFFICE.

GEORGE KELLY, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE KELLY SCROLL SECTIONMANUFACTURING COMPANY, OF SAME PLACE.

NON-CONDUCTING COVERING.

SPECIFICATION forming part of Letters Patent No. 292,318, datedJanuary22, 1884.

Application filed ma 22, 1883. x model.)

To 50% whom it may concern: As shown, myimproved covering consists of Beit known that I, GEORGE KELLY, a citilayers a, of paper or other pliablematerial zen of the United States, and a resident of Chifolded uponthemselves in the flat, (see Fig. 2,) cago, in the county of Cook andState of Illiand which may be pasted together or not, as nois, haveinvented certain. new and useful desired or found most cdnvenient. Whenthus Improvements in Non-Conducting Coverings; laid up to the requiredthickness, the section and I do hereby declare that the following is isbent into the cylindrical or other shape reafull, clear, and exactdescription of the same, quired. (See Fig. 1.)

referencebeinghadto. the accompanying drawa is an overlap formed by anextension of IO ings, forming a part of this specification. the outerlayer of paper, 8m, the purpose of Myinvention relatestoimprovementsinthat which is to close the joint or seam 0. of the class ofnon-conducting coverings in which laycovering bylapping over the same,and pasted ers of paper are used to form .the covering; and or otherwisesecured in place. the objects of my improvement are, first, to Whendesired, the covering can belined with 15, provide animprovedconstruction and arrangea suitable incombustible lining-such, for in- 6oment of parts whereby such coverings can be stance, asasbestus board.cheaply and quickly made; second, to afford When it is desiredto formdead-air spaces means whereby the covering can be readily in thecovering, I arrange longitudinal strips applied to or removed fromaround the pipe, a, of paper or other suitable material, between 2o &c.,and have its longitudinal joint or seam the layers a of paper formingthe covering, in

made tight. I attain such objects by the conmanner indicated in Fig. 3,by which means struction of parts illustratedin the accompadead-airspaces a are formed in the body of nying drawings, in whichg thecovering.

Figure 1 is a perspective view, illustrating Having thus fully describedmy invention, 25 my completed covering as applied to a section what Iclaim, and desire to secure by Letters of steam or other pipe. Fig. 2 isan end view, Patent, isv illustrating the manner in which my improved 1.A non-conducting covering for pipes, 85c. covering is formed. Fig. 3 isa detail end view, composed of layers of paper. 810., folded uponshowing dead-air spaces. themselves in the flat, and then bent to there- 30 The mode heretofore employed in forming quired shape,substantially as described. non-conducting coverings of paper has been2. Anon-conductingcoveringforpipes, &c,, to roll the paper in a closedcylindrical shape composed of layers of paper, 860., folded upon upon amandrel to the desired thickness, and themselves in the flat, then bentto the required then cut it open longitudinally, so as to pershape, andprovided with an overlap, a as 5 mit of its being sprung open in placingit on described, and for the purpose set forth. S0 or removing fromthesteam or other pipe. 3. A non-conducting covering composed of This modeof manufacture is not only costly, layers of paper,- &c., in combinationwith longibut at the same time is laborious and difficult tudinalstripsa, arranged, as described, to to accomplish. form dead-air spaces. a

' o In my improvement, as illustrated in the In testimony whereofwitness my hand this 8 drawings, I obviate most of the difficulties 18thday of May, 1883.

heretofore met with in the manufacture of pa- GEORGE KELLY.

per coverings, and more especially the neces- In presence ofsity ofcutting or slitting the covering longi- ROBERT BURNS, 45 tudinally.JEROME THOMPSON.

